PROBLEM TO BE SOLVED: To make it possible that air is more unlikely to be collected in an optical path around an eyeball of a subject, compared with when the face of the subject is not inclined relative to a horizontal plane.SOLUTION: A pressed part 90 includes an upper pressing portion 90A against which is pressed a portion (portion located at an eyebrow (not shown) side) located above an eyeball 10 of a subject. The pressed part 90 also includes a lower pressing portion 90B against which is pressed a portion (portion located at a cheek side) located below the eyeball 10 of the subject. The upper pressing portion 90A is located above the lower pressing portion 90B in a vertical direction. When a peripheral part 98 of the subject is pressed against the pressed part 90, the face of the subject is inclined relative to a horizontal plane. This allows the air collected at the inner canthus of the subject to escape to the outside.SELECTED DRAWING: Figure 2【課題】被計測者の顔面が水平面に対して傾斜しない場合に比べ、被計測者の眼球周辺の光路に空気が溜まりにくくする。【解決手段】被押し当て部90には、被計測者の眼球10よりも上方に位置する部分(眉毛(不図示)側に位置する部分)が押し当てられる上方側押し当て部90Aが設けられている。また、被押し当て部90には、被計測者の眼球10よりも下方に位置する部分(頬側に位置する部分)が押し当てられる下方側押し当て部90Bが設けられている。上方側押し当て部90Aの方が、下方側押し当て部90Bよりも鉛直方向における上方に位置する。被計測者の周辺部分98が被押し当て部90に押し当てられると、被計測者の顔面が水平面に対して傾く。これにより、被計測者の目頭に溜まる空気が目頭の外に逃げる。【選択図】図2
